My plan is to offer a "silent" escrow.
user1 and user2 agree to use escrow.fav as 3rd key.
user1 and user2 trade, everything goes well. they release funds. escrow.fav is not needed
user2 opens a dispute, because user1 did not deliver. they now need escrow.fav to judge.
both parties inform me about the situation and I open a dispute case. I will then make a decision based on proof and facts and decide to follow either user1's release request or user2's.
does that make sense?